Investigation of proton-transfer reaction for surface acid/base functional groups of various thiol-SAMs : determination of surface $pK_a$ values자기조립박막층에서 산염기 작용기의 수소이온 전달반응 연구 : 표면 $pK_a$ 값의 결정
Self-Assembled Monolayers (SAMs) of various acid/base thiols were prepared on gold surface, and their surface $pK_a$ values were obtained by measuring interfacial capacitance, cyclic voltammogram (CV), and contact angle. It was shown that the obtained surface $pK_a$ values of each method are same, and they are dependent on the environmental hydrophilicity of the acid/base functional groups.